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Hey Roadtorque, no problems with doing longer bury, it just means you have more distance to start with making you need trees a bit further apart. I do 12" burys normally and have had that hold well over 400 pounds.

Hey Roadtorque, no problems with doing longer bury, it just means you have more distance to start with making you need trees a bit further apart. I do 12" burys normally and have had that hold well over 400 pounds.

Thanks, I just sent an email to your site. I will probably be placing an order for amsteel soon. I just need to figure out if I want the 1/8 or 7/64 diameter. Maybe I will get scared of the DIY and just buy the premade ones.

EDIT: I guess if the jack's standard bridge suspension rated at 700lbs will hold me then the 7/64 amsteel rated at 1400lbs should hold me. Thanks Opie and pgibson. If my diy project fails, and I survive it, I will be placing an order with each of you for some premade stuff. I just figure making a whoopie would be a handy skill to learn so I will give it a shot first.

I made it through 10 of 44 pages...I cant read any more I'm thinking of making a whoopie sling for my suspension/ tarp tie outs. The part I dont fully understand is how one knows the buried length of both the fixed and adjustable ends. I plan on ordering 1/8 amsteel from Arrowhead equipment to make two lengths of 10'ish hammock suspension, one length of 120''ish for a structural ridge line, and ten 6'ish tarp tie outs. Can I use the same bury length for all of these and if so what length to should I use?

The length of the bury is computed from the rope diameter. Samson Ropes has details on splicing both the fixed eye and the whoopie sling. Both spell out the lengths recommended based on the "fid length" which is based on the rope diameter.

I've read a ton about whoopie slings today. I know I ran across it somewhere but I cant find it now. Can you make whoopie slings out of braided mason line? I think I will use that for my tarp tie-outs. Thanks

I've read a ton about whoopie slings today. I know I ran across it somewhere but I cant find it now. Can you make whoopie slings out of braided mason line? I think I will use that for my tarp tie-outs. Thanks

Yes.

You will find, however, that its not all that easy releasing the tension on a whoopie sling when both sides of it are tensioned. There is no play to relieve the adjustable bury. It is possible, but there are other methods better suited for guy lines.

A Fid is 7*circumference of the cord. Or 7*pi*diameter. pi is just a touch over 3, so many folks just say a Fid is 21 or 22 * dia. I'll use 22*dia in the tables below. The length of the bury also depends on the type of bury. According the Samson documents, a loop bury should be 2 fids and a whoopie bury is 3.5 fids.

1.75mm (0.0689")

Loop bury: 3.0"

Whoopie: 5.3"

2.0mm (0.0787")

Loop bury: 3.5"

Whoopie: 6.1"

2.2mm (0.0866")

Loop bury: 3.8"

Whoopie: 6.7"

7/64" (0.1094")

Loop bury: 4.8"

Whoopie: 8.4"

1/8 (0.125")

Loop bury: 5.5"

Whoopie: 9.6"

Hope that's all right.

I assume some portion of the bury length on a loop bury is the taper. Note that when you when pulling the bury on loop bury you'll need to "enter" a bit further down the cord than the length of the bury, otherwise you'll end up with a portion of the bury exiting the entry point. I'd give yourself another 25% or so.

The length of the loop buries on the small cord seem a bit excessive, I wonder if there is some sort of curve for computing the bury length based on cord diameter and the "2 fids" recommendation is some 90% case?

wasn't sure where to post this.... buuuuut last night during the opening ceremonies for the 2010 Winter Olympic Games, there was this kid being suspended by wires and flying over the stadium floor, and I couldn't help but think, "You know, that kid could EASILY be flyin' around by a couple of 7/64 or 1/8 whoopie slings! EASILY!"
So anyway, couldn't help but laugh at myself for that and thought someone else might get a kick out of it

"The sea was angry that day, my friends! Like an old man... trying to send back soup at a deli!"